What are the top day trading platforms or brokers offering automated trading systems?

The top day trading platforms and brokers offering automated trading systems are:

1. **MetaTrader 5 (MT5)**: A popular platform with an extensive library of automated trading systems and a large developer community.
2. **TradingView**: Offers a robust platform for creating and backtesting automated trading systems, with a wide range of trading tools and indicators.
3. **eToro**: Provides a user-friendly platform for day trading, including automated trading features and social trading capabilities.
4. **Forex.com**: Offers a comprehensive automated trading system for day trading, including advanced charting tools and real-time data.
5. **Alpari**: Provides a powerful platform for day trading, offering advanced automated trading systems and real-time market data.
6. **Axi**: Offers a user-friendly platform for day trading, including automated trading features and access to real-time market data.
7. **IG**: Provides a comprehensive platform for day trading, including automated trading systems and advanced charting tools.
8. **GAIN Capital**: Offers a powerful platform for day trading, including automated trading features and real-time market data.
9. **OANDA**: Provides a user-friendly platform for day trading, including automated trading features and real-time market data.
10. **FXCM**: Offers a comprehensive platform for day trading, including automated trading systems and advanced charting tools.

These platforms and brokers offer a range of features and tools for day trading, including automated trading systems, real-time data, advanced charting tools, and social trading capabilities. When choosing a platform, consider your specific needs and preferences, such as ease of use, trading tools, and customer support.